Mixer



Ace the same.

45 sup ly line. ril

" E@ l S .mit

.renna ramasse J. naar., or encontrar, new maar.

1 applicants and. apra ie, ieee. sex-inn. seance..

To aZZ whom it concern.' Y

Be it known that I, FREDERIC J. BALL, a citizen ci the United States, and resident of the borough of Brooklyn, in the city and` e State of New York, have invented a new and useful improvement in Mixers, of which the following is a specification. Y

It is well known 'that with the low grade of lliquid hydrocarbon fuel now commonly l@ used in internal combustion engines, it is extremely dificult, if not impossible, to -properly mix the fuel in the carbureter.

rlhis incomplete mixing of the fuel results in a wet mixture being drawn into the engine cylinders, which mixture, when ex-` ploded, produces considerably less power than a dry mixture and also carbonizes the sparlr'plugs much more quickly.

The object of my invention is to produce a very dry mixture which will eliminate the above knowndisadvantages, said dry mixture being obtained by means of a novel form of mixer which is introduced into the fuel supply line between the carbureter and.

the engine intake manifold. -0

A practical embodiment of my lnventlon in which ig. 1 represents a vertical central secso tion through my improved mixer and the portion of the fuel supply line within which` the mixer is placed.

Fig. 2 represents a topplan View of the inner and outer members of the mixer.

Fig.- 3 represents an inverted plan view of the same. y Fi 4 represents a top plan of the bottom mem r of the mixer.

`Fig. 5 represents an inverted plan view of Fig. 6 represents a detail vertical central section showing a modified form in which the bottom member of the mixer is formed integral with the hollow coupling of the fuel e mixer comprises the inner and outer tubular membersand a bottom tubular member, which members are constructed,

formed and arran ed as follows;

rlhe inner tubu ar member hasupwardly and downwardly Haring inner and outer walls 1, 2 and `3, 4, forinmg a venturi bore, both the -maximum and`=minimum -diameters of which are 'considerably less than the i is represented in the accompanying draw` diameter of the bore of the fuel supply line, leading from the carburetor to the engine cylinder intake manifold rlhe downwardly flaring inner wall 2 of the inner member is provided with annular steps forming baes for the upowing fuel mixture to catch the heavier or wetter portion of the mixture and delay its passage until it becomes dryer by more complete mingling with the air. The upwardly iaring outer wall 3 of the inner tubular member is also .provided with annular steps for the same purpose.

The 'outer tubular member of the mixer is rovlded with upwardly and* Vdownwardly aring inner walls 5 and 6, spaced from the corresponding outer walls 3 and 4 ofthe inner tubular member, thereby forming a venturi bore, the walls ofwhich are substantially parallel with the walls of the venturi bore, through the inner tubular member.

The minimum diameter of the bore .of the outer tubular member, is preferably slightly larger than the maximum diameters of the inner tubular memberlat its top and bottom,

and the maximum diameters of the bore in the outer tubular member at its top and bottom are substantiall the same as the diameter of the bore of t e fuel supply line.

` The f upwardly and downwardly .flaring` portions of the inner tubular member may l be perforated by providing transverse holes 7, which 'may be arranged irregularly so as Ato Iprovide numerous small transverse ports,

Adry mixture. This is accomplished by a Y lowing the heavier or wetter particles to pass outwardl through the holes in the downwardly aring ortion of the inner tubular .member into t e outer annular vertical passage and from thence inwardly through the holes in the upwardl aring portion of theinner tubular mem r, into the inner'central .vertical assage.

The inner tubular mem r may sultably supported within the. outer tubular member with the tops and bottoms of the members substantially iiush, as for instance by means of radially arranged pins 8, connectin the two members.

The ottom tubular member 9 has its bore greater in diameter than the minimum bore of the vertical passa e through the inner tubular member, and esser in diameter than the minimum diameter of the vertical passage between the inner and outer members. The top of the bottom tubular member 9 is concaved, forming a chamber 10 from which a portion of the mixture may pass into the outer vertical annular passage. The mixer may be inserted into the fuel supply pipe line by providing a casing 11, the bottom flange 12 of vwhich may be secured to the ange 13 of the uprising carbureter pipe 14 and the top ange 15 of which may be secured to the flange 16 of the engine intake manifold pipe 17. The outer tubular member of the mixer fits snugly within the bore of the casing 11 and it may be held against vertical displacement between the annular shoulder of the engine intake manifold pipe and the bottom member, which bottom member restsupon a shoulder formed in the bore of the casing 11.

The wall of the bottom tubular member 9 may be perforated as shown at 18, bringing the space near the walls of the bore of the casing into communication with the chamber 10, in the top of the bottom tubular member.

Ifso desired, the bottom tubular member of the mixer may be formed integral with the casing 11, as shown in Fig. 6.

lt will be understood that the lighter and drier portion of the mixture may be readily rawn upwardly through the inner central vertical passage through the mixer, and that the heavier articles arel normally spread to the outsi e and brought into engagement with the stepped inner wall of the ownwardl flaring portion of the inner tubular mem er.

IThese' heavier articles Ypass outwardly through the holes g in the downwardly Haring portion of the inner tubular member into the outer annular vertical passage between the inner and outer tubular members. The heavier particles are then lbrought into engagement with the stepped outer wall of the upwardl aring'portion of the inner tubularmem `r and pass inwardly through the holes in said upwardly Haring portion in the inner tubular member to cause a more complete breaking u of the wetter portion of the mixture, there y ensuring the passage of a much dryer seous mixture into the engine intake manifold than would be possib e where the mixture is passed directl rlim the carburetor to the said intake manit is evident various changes fmay be Latinas resorted to in the construction, form and arrangement of the several parts without departing from the spirit and scope of my 1nvention, hence I do not wish to be limited to the particular embodiment herein shown and described, but

What I claim is:

1. A mixer comprising. inner and outer tubular members, the inner tubular member having upwardly and downwardly flaring inner and outer wall surfaces and the outer tubular member having upwardly and down,

wardly flaring inner wall surfaces spaced from the corresponding outer wall'surfaces of the inner member.

2. A mixer comprising inner and outer tubular members, the inner tubular member having upwardly and downwardly flaring inner and outer perforated wall surfaces and the outer tubular member havin upwardly and downwardly flaring wa surfaces spaced from the corresponding outer wall surfaces of the inner member.

3. A mixer com rising inner -and outer tubular members, t e inner tubular member having upwardly and downwardly flaring inner and outer wall surfaces, the ldownwardly flaring inner wall surface having annular steps and the outer member having upwardl and downwardly flaring inner wall sur aces spaced from the corresponding outer wall surfaces of the inner member.

4. A mixer comprising inner. and outer tubular members, the inner tubular member having upwardly and downwardly fiaring inner and outer erforated wall surfaces, the downwardly aring inner wall surface having annular steps and the outer member having u wardly and downwardly flaring inner wal surfaces spaced from the corresponding outerwall surfaces of the inner member.

5. A mixer com rising inner and outer tubular members, t e inner tubular member having upwardly and downwardly Haring inner and outer wall surfaces, the upwardly 'flaring outer wall surface having annular -steps and the outer tubular member having upwardlyv and downwardly Haring inner wall surfaces s aced from the corresponding outer wall sur aces of the inner member.

6. A mixer comprising inner and outer tubular members, the inner tubular member having upwardly and downwadly flaring inner and outer perforated wall surfaces, the upwardly daring outer wall surface having annular steps' and the outer tubular member having upwardly and downwardly flaring inner wall surfaces spaced from the corresponding outer wall surfaces of the inner member.

7. A mixer com rising inner-and outer.

tubular members, t e inner tubular member having upwardly and downwardly Haring inner and outer wall surfaces, the downber having upwardly and'downwardly Har-- ing inner wall surfaces spaced from the corresponding outer wall surfaces of the inner member.

I tubular members, the inner tubular member having upwardly and downwardly flaring inner and outer perforated wall surfaces, the downwardly flaring inner wall* surface and the upwardly flaring outer wall surface having annular steps and the outer tubular member having upwardl and downwardly Haring inner wall sur aces spaced from the corresponding outer wall surfaces 0f the inner member.V

9. A mixer comprising inner, outer and bottom tubular members, the inner tubular -member having upwardly and downwardly flaring inner and outer wall surfaces, the

p outer tubular member having upwardly and passage between the inner and outer tubular member.

downwardly flaring inner wall surfaces spaced from the corresponding outer wall surfaces of the inner member, and the top of the bottom tubular member beingconcave to form a chamber open to the annular passage between the inner and outer tubular members.

10. A mixer comprising inner, outer and bottom tubular members, the inner tubular member having upwardly and downwardly flaring inner and outer perforated wall surfaces, the outer tubular member having upwardly and downwardly flaring inner wall surfaces spaced from the corresponding outer wall surfaces of the inner member, and the top of the bottom-tubular member being concave to form a chamber open to the annular passage between the inner and outer tubular members.

11. A mixer comprising inner, outer and v bottom tubular members, the inner tubular member having upwardly and downwardly flaring inner and outer wall surfaces, the outer tubular 'memberhaving upwardly and downwardly flaring inner wall surfaces spaced from the corresponding outer wall surfaces of the inner member, and the top of the bottom tubular `member being concave to form a chamber open 'to the annular members, the bottom tubular nember hav- .ing its bore greater in diameter than the mlnimum diameter of the bore of the inner member, and lesser in diameter than the minimum diameter of the bore of the outer 12. A mixer comprising inner, outer and bottom tubular members, the inner tubular member having upwardly and downwardly -surfaces spaced from the corresponding 8.- A mlxer comprismg inner and outerouter wall surfaces'of the inner member, and the top of the bottom tubular member being concave to form a chamber open to the annular passage between the inner and outertubular members, the bottom tubular member having its 4bore greater in diameter than the minimum diameter of the bore of the inner member, and lesser in diameter than the minimum diameter of the bore` of the outer member.

13. A mixer comprising inner, outer and bottom tubular members, the inner tubular member having upwardly and downwardly flaring inner and outer wall surfaces, the downwardly flaring inner wall'surface and upwardly flaring outer wall surface having annular steps, the outer tubular member having upwardly and downwardly fiaring inner wall surfaces spaced from thc corresponding outer wall surfaces of the in- -ner member, and the top of the bottom tubular member being concave to form a ,chamber leading to the annular passa e between the inner and outer tubular mem rs.-

14. A mixer comprising inner, outer and bottom tubular members, the inner tubular lmember having upwardly and downwardly tubular member having upwardly `and; downwardly aring vinner wall surfaces spaced from the corresponding outer wall surfaces on the inner member, and the top of the bottom tubular member bein concave to form a chamber leading to t e annular passage between the inner and outer tubular members.

15. A mixer comprising inner and outer tubular members shaped to form a central open passage and an annular open passage,

the wall surfaces of the passages flaring up wardly and downward y from an mtermediate point, the downwardly flarln wall surface of the central passage and t e u wardly flaring inner wall surface of t e annular passage havin annular steps.

` In testimony, that claim the foregoing as my invention, I have signed my name this 11th day of April 1922.

" y'IERFJDERIC J'. BALL. 

